Solving nonlinear ODEs with the ultraspherical spectral method
O Qin, K Xu - IMA Journal of Numerical Analysis, 2024 - academic.oup.com
We extend the ultraspherical spectral method to solving nonlinear ordinary differential
equation (ODE) boundary value problems. Naive ultraspherical Newton implementations …
equation (ODE) boundary value problems. Naive ultraspherical Newton implementations …
Computing equilibrium measures with power law kernels
We introduce a method to numerically compute equilibrium measures for problems with
attractive-repulsive power law kernels of the form $ K (xy)=\frac {| xy|^\alpha}{\alpha}-\frac …
attractive-repulsive power law kernels of the form $ K (xy)=\frac {| xy|^\alpha}{\alpha}-\frac …
Numerical solution of fractional order fredholm integro-differential equations by spectral method with fractional basis functions
This paper introduces a new numerical technique based on the implicit spectral collocation
method and the fractional Chelyshkov basis functions for solving the fractional Fredholm …
method and the fractional Chelyshkov basis functions for solving the fractional Fredholm …
Spectral approximation of convolution operators of Fredholm type
X Liu, K Deng, K Xu - arXiv preprint arXiv:2405.08598, 2024 - arxiv.org
We have developed a method for constructing spectral approximations for convolution
operators of Fredholm type. The algorithm we propose is numerically stable and takes …
operators of Fredholm type. The algorithm we propose is numerically stable and takes …
A fast sparse spectral method for nonlinear integro-differential Volterra equations with general kernels
TS Gutleb - Advances in Computational Mathematics, 2021 - Springer
We present a sparse spectral method for nonlinear integro-differential Volterra equations
based on the Volterra operator's banded sparsity structure when acting on specific Jacobi …
based on the Volterra operator's banded sparsity structure when acting on specific Jacobi …
A sparse spectral method for Volterra integral equations using orthogonal polynomials on the triangle
We introduce and analyze a sparse spectral method for the solution of Volterra integral
equations using bivariate orthogonal polynomials on a triangle domain. The sparsity of the …
equations using bivariate orthogonal polynomials on a triangle domain. The sparsity of the …
[HTML][HTML] A static memory sparse spectral method for time-fractional PDEs
TS Gutleb, JA Carrillo - Journal of Computational Physics, 2023 - Elsevier
We discuss a method which provides accurate numerical solutions to fractional-in-time
partial differential equations posed on [0, T]× Ω with Ω⊂ R d without the excessive memory …
partial differential equations posed on [0, T]× Ω with Ω⊂ R d without the excessive memory …
Numerical solution of fractional Fredholm integro-differential equations by spectral method with fractional basis functions
Y Talaei, S Noeiaghdam, H Hosseinzadeh - arXiv preprint arXiv …, 2022 - arxiv.org
This paper presents an efficient spectral method for solving the fractional Fredholm integro-
differential equations. The non-smoothness of the solutions to such problems leads to the …
differential equations. The non-smoothness of the solutions to such problems leads to the …
Convergence analysis of a Legendre spectral collocation method for nonlinear Fredholm integral equations in multidimensions
It is a very challenging task to solve a nonlinear integral equation in multidimensions. The
main purpose of this paper is to develop and analyze a spectral collocation method for a …
main purpose of this paper is to develop and analyze a spectral collocation method for a …
[PDF][PDF] Legendre spectral collocation method for solving nonlinear fractional Fredholm integro-differential equations with convergence analysis
The main purpose of this work was to develop a spectrally accurate collocation method for
solving nonlinear fractional Fredholm integro-differential equations (non-FFIDEs). A …
solving nonlinear fractional Fredholm integro-differential equations (non-FFIDEs). A …